German KROHNE radar level gauge

KROHNERadar level gauge

KROHNE OPTIWAVE 7300 C

Performance and advantages

High resolution and high precision

Measurement of distance, level, and volume of liquids, solids, or slurries

More advanced design enables it to operate over a wide frequency bandwidth

Higher signal dynamic characteristics

Accuracy: ±3mm

New generation FM continuous wave（FMCW）Radar level gaugeOPTIWAVE 7300CBased on a two-line technology, it is used for distance, level, and volume measurement of liquids, mucous, or solids, and is similar to Cologne's previous radarBM70compared toOPTIWAVE 7300CThe level gauge can be used as part of an anti overflow system to protect process equipment from overflow. In addition, these level gauges also have the following different properties:

Higher frequency （24...26 GHz）

Larger frequency bandwidth （2 GHz）

Higher signal dynamic characteristics （110 dB）

Better stability,This allows for higher accuracy, stronger signal processing capabilities, better noise stability, and a wider range of applications.

KROHNE OPTIWAVE 6300 C

Frequency modulated continuous wave level meterOPTIWAVE 6300 C

Solid media such as powders and particles

Patented waterdrop antenna

'Frequency modulation continuous wave principle, no need for sight

'Water droplet antenna, effectively preventing material hanging, with a minimum emission angle of4°

'Two line system, saving wiring costs

'Accuracy:+/- 10mm

The maximum range can reach80m

Kband24G-26GHzHigh frequency radar waves effectively enhance the dynamic gain of signals

Gundam2GHzThe bandwidth is used to identify the true changes in material level under complex working conditions

Convenient two-wire technology greatly reduces wiring maintenance costs

belt4A touch key display screen that supports multiple languages (including Chinese)

passWizardInstallation wizard, guiding users to easily set instrument parameters

Powerful signal processing software that can handle various challenging working conditions with ease

1BM702Performance Product Introduction System composition:

Signal converter, flange, antenna; The signal converter can be removed from the sensor under operating conditions without interrupting the operation of the tank. Performance indicators:

1 Scope of application Measurement of distance, level, and volume of liquids, slurries, viscous materials, and solid particles in storage tanks and process vessels (metal containers, cement tanks).

2 Working principle/system architecture XBand（8.5～9.9GHZofFMCWRadar waves, digital signal processing;

Integrated structure, modular design

3 Measurement range Minimum tank height:0.5mMaximum measurement range:20mDead zone:0.2～0.5m；

Level change rate<10rice/divide

4 Output

Two wire current output

Signal malfunction Form: PassiveEExiaCurrent range:4～20mATemperature drift:<150ppm/K

Power Supply:>17V（I＝4mA）

Current output: Fault signal, on-site text display

5 Measurement accuracy

precision

repetitiveness

resolution ±1cm；±2.2％

0.5measurement accuracy

1mm

6 On site conditions

6.1 Installation requirements Avoid interfering with reflections and multiple reflections

6.2 environmental conditions

Explosion proof area level

ambient temperature

Flange temperature Zone0， 1 ， 2 ；IIB，T1～T6

Shell protection level (signal converter)

seismic resistance

Electromagnetic Compatibility IP66/IP67

The impact test meets the requirementsEN61010Standard, drop test meetsprEN50178standard

comply withEN50081－1，EN50082－2，NAMURstandard

6.3 Medium conditions

physical properties

No impact on measurement results

7 Components

material

Signal converter casing

Flange system, antenna, extension, sealing ring

Rod antenna Aluminum casting electrostatic powder coating; Window: Glass

stainless steel316Tior316LHastelloy alloyC4orB2Titanium, tantalum, etc

Krlrez 4079,2035,6375,1091,Viton（FPM），FEPcoating

PPorPTEEThe flange is316Ti

8 Power supply two-wire system 4 ～20mA

9 On site user interface

keyboard

display in situ

Operator Interface Language

unit of measurement 4key

Three linesLCDdisplay

England, Germany, France, etc

Volume: cubic meters, litersGalTheft， ％

10 Certification CENELEC/EEXDE（ia）（ib）IIC T1～T6，Zone 0；FM/Div1/Div2；CSA

flange antenna Diameter（mm） weight

DIN(BS) DN ANSIinch form diameter(a) stainless steel(f) Hastelloy(f)Titanium, tantalum(f) Kg

80 3 1 80 110 145 110 9

100 4 2 100 148 177 146 10

150 6 3 140 223 250 220 16

200 8 4 200 335 360 332 21

IIBM700Performance Product Introduction

Performance indicators:

1 Scope of application Measurement of distance, level, and volume of liquids, slurries, viscous materials, and solid particles in storage tanks and process vessels (metal containers, cement tanks).

2 Working principle/system architecture XBand（8.5～9.9GHZofFMCWRadar waves, digital signal processing;

Integrated structure, modular design

3 Measurement range Minimum tank height:0.5mMaximum measurement range:20mDead zone:0.2～0.5m；

Level change rate<10rice/divide

4 Output

Two wire current output Form: ActiveEX－eCurrent range:4～20mATemperature drift:<100ppm/K

Power Supply:<350 ©

Signal malfunction Current output: Fault signal, on-site text display

5 Measurement accuracy

precision

repetitiveness

resolution ±1cm；±0.3％

0.5measurement accuracy

1mm

6 On site conditions

6.1 Installation requirements Avoid interfering with reflections and multiple reflections

6.2 environmental conditions

Explosion proof area level

ambient temperature

Flange temperature Zone0， 1 ， 2 ；IIB，T1～T6

Shell protection level (signal converter)

seismic resistance

Electromagnetic Compatibility IP66/IP67

The impact test meets the requirementsEN61010Standard, drop test meetsprEN50178standard

comply withEN50081－1，EN50082－2，NAMURstandard

6.3 Medium conditions

physical properties No impact on measurement results

Media limitations

Process temperature

Operating pressure Liquid ammonia, liquid hydrogen, liquid helium

Unlimited (but pay attention to the ambient temperature and flange temperature)

Horn antenna/Waveguide antenna: depends on the specifications and pressure rating of the flange; Standard:40bar

7 Components

material

Signal converter casing

Flange system, antenna, extension, sealing ring

Rod antenna Aluminum casting electrostatic powder coating; Window: Glass

stainless steel316Tior316LHastelloy alloyC4orB2Titanium, tantalum, etc

Krlrez 4079,2035,6375,1091,Viton（FPM），FEPcoating

PPorPTEEThe flange is316Ti

8 Power supply two-wire system 4 ～20mA

24VDC/AC 115/230VACpower consumption 19.2～28.8VDCor20.4～26.4VAC

typical6W/10VA

9 On site user interface

keyboard

display in situ

Operator Interface Language

unit of measurement 3key

2lineLCDplus6A status symbol

England, Germany, France, etc

Volume: cubic meters, litersGalTheft， ％

Length:m cm mm inch ft %

10 Certification CENELEC/EEXDE（ia）（ib）IIC T1～T6，Zone 0；FM/Div1/Div2；CSA

flange antenna Diameter（mm） weight

DNANSI form diameter(a) stainless steel(f) Hastelloy(f)Titanium, tantalum(f) Kg

80 3' 1 80 110 145 110 17

100 4' 2 100 148 177 146 18

150 6' 3 140 223 250 220 23

200

feature

• Can measure both level and interface simultaneously

The measurement is not affected by dust, steam and foam

Measurement is not affected by changes in dielectric constant, temperature, and pressure Measurement is not affected by hanging materials

Measurement is not affected by the shape of the can

No calibration required

BM100Can measure both level and interface simultaneously

BM102Design structure for two-wire system

BM100working principle

According to the dielectric constant of the medium, it can be divided into the following two situations

1.Dielectric constant of dielectric Ör>1.8(Direct reflection method)

2.The dielectric constant of a mediumr<1.8(Tank bottom reflection)TBFMethod)

1.dielectric constant>1.8the material At this momentBM100The working principle of the series is called "direct reflection", which calculates the measured liquid level directly by calculating the reflection of the liquid level. The following are two different applications.

A.Level measurement The signal receiver receives the first liquid level reflection signal, and the return time of the microwave pulse is directly proportional to the liquid level.

B.Interface measurement The liquid level at the interface can only be measured when the dielectric constant of the first reflecting surface is lower than that of the second reflecting surface. For interface measurement, the residual wave of the first reflection surface continues to propagate in the medium until it encounters the interface, and then reflects again. The time difference of measuring the echo is the measurement interface. 2.dielectric constant<1.8the material For media with low dielectric constant, the surface reflection pulse energy is low, so direct reflection cannot be used to measure liquid level. In response to this situation, adopt

TBF(Tank bottom tracking principle), that is, the instrument sets a short-circuit position at the bottom of the tank, and the length of the probe is known. Microwave pulses propagate at the speed of light in the air, decelerate when encountering a medium (depending on the dielectric constant of the medium), and return when the wave encounters the short-circuit position. The return time of microwaves in air is known, so the time difference between microwave reflection and return can be calculated, which is proportional to the material level.TBFThe accuracy of the method is lower than that of the direct method.

BM100performance metrics

1. Scope of application Level and interface of special media such as liquids, particles, powders, liquefied gases, and ammonia water

2. measurement range 《6msingle pole<Single cable 《6mdouble bars/coaxial<60mDual cable

3. precision Direct reflection methodL《6m：±3mmOutside the dead zone ——L>6m：±3mm±0.01%

TBFmethod ±100mmOr ±20mm(When the dielectric constant is constant)

resolution/repetitiveness 1mm

dielectric constant Interface measurement Ör>2Level measurement Ör>1.05

4. Probe form/material stainless steel316/316LHastelloyC276Titanium, Tantalum

5. work pressure － 1 ～＋40barOptional:100baror higher

6. Operating Temperature Flange temperature: - 30…… ＋150Medium temperature: - 50…… ＋150

temperature drift 0.01%

7. ambient temperature － 30…… ＋50

8. Process temperature standardDN100，PN16; Other optional

9. Shell protection level IP67

10. power supply 24V AC/DCor 110 ～240VAC＋ 10 ％； Maximum power consumption9VA

11. output 1 a 4 ～20mApassive Optional: 2 a 4 ～20mA

12. communication KROHNEorHARTcommunication protocol

field bus pressCrownThe agreementRS485Or other optional options

13. standard comply withEN 50082－2 EN50082－ 2 standard

14. On site user interface 2 lineLCDplus 6 A status symbol

language England, France, Germany

15. weight Non explosion proof type without probe:8Kg; WithDNFlange, explosion-proof:9Kg

16. certification CENELEC/EEx de/d IIC/IIB T6-T3,Zone,0,10,11 FM/Div1/Div2; GL

BM102level meter Features:

Widely applicable, can be used for wastewater, petrochemical products, various solvents and chemical reagents, lime, cement, grains, plastic pellets, flour, slag, etc Low cost two-line system ※ Measurement is not affected by steam and foam The measurement is not affected by changes in environmental temperature and pressure ※ ThroughPCSoftware orHARTHand operated testing

Working Principle:

BM102The guided wave radar level gauge is from GermanyKROHNEThe low-cost two-wire level instrument produced by the company is based on the principle of time-domain reflection.

TDRPrinciple:

with a period of1 nsLow power electromagnetic waves are emitted along a rigid or flexible conductor, and when the waves meet the liquid, a portion is reflected. The liquid level can be measured by calculating the return time. The higher the dielectric constant of the medium, the more significant the reflection. The microwave transmitted along the conductor propagates in the medium at the speed of light. Therefore, compared with ultrasound, the transmitted or reflected wave energy has no attenuation and is much stronger than other sound waves and electromagnetic waves. External interference such as foam, powder, steam, etc. has no effect on its measurement. At the same time, it is not affected by the shape of the container. The deviation of the dielectric constant does not affect the level measurement.